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Module: AbstractController::Callbacks

Overview

Abstract Controller provides hooks during the life cycle of a controller action. Callbacks allow you to trigger logic during this cycle. Available callbacks are:

  • after_action

  • append_after_action

  • append_around_action

  • append_before_action

  • around_action

  • before_action

  • prepend_after_action

  • prepend_around_action

  • prepend_before_action

  • skip_after_action

  • skip_around_action

  • skip_before_action

Constant Summary

::ActiveSupport::Callbacks - Included

CALLBACK_FILTER_TYPES

::ActiveSupport::Callbacks - Attributes & Methods

Class Method Summary

::ActiveSupport::DescendantsTracker - self

descendants, subclasses, clear, disable_clear!, reject!

::ActiveSupport::Concern - Extended

class_methods

Define class methods from given block.
included

Evaluate given block in context of base class, so that you can write class macros here.
prepended

Evaluate given block in context of base class, so that you can write class macros here.
append_features, prepend_features

Instance Method Summary

::ActiveSupport::Callbacks - Included

#run_callbacks

Runs the callbacks for the given event.
#halted_callback_hook

A hook invoked every time a before callback is halted.

DSL Calls

included

[ GitHub ] 


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# File 'actionpack/lib/abstract_controller/callbacks.rb', line 32

included do
  define_callbacks :process_action,
                   terminator: ->(controller, result_lambda) { result_lambda.call; controller.performed? },
                   skip_after_callbacks_if_terminated: true
  mattr_accessor :raise_on_missing_callback_actions, default: false
end

Class Attribute Details

.__callbacks (rw)

[ GitHub ] 

  


# File 'activesupport/lib/active_support/callbacks.rb', line 69



class_attribute :__callbacks, instance_writer: false, instance_predicate: false, default: {}


  







Instance Attribute Details



  

    #__callbacks   (readonly)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/callbacks.rb', line 69



class_attribute :__callbacks, instance_writer: false, instance_predicate: false, default: {}


  







Instance Method Details



  

    #process_action   (private)
  



  

    

Override Base#process_action to run the process_action callbacks around the normal behavior.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/abstract_controller/callbacks.rb', line 259



def process_action(...)
  run_callbacks(:process_action) do
    super
  end
end